Task G – Stochastic Forward Simulations

Objectives:

To develop a database of simulated ground motions to be used in GMPE development.

The stochastic simulations will be the main method for generating ground motion data for GMPE development. The first task consists in the Simulations WG selecting broad sets of point source parameters. The goal of this task is to cast a net wide enough that it will include all the plausible combinations of input parameters in the generation of simulated ground motions. This will create a large database of simulated ground motions and will prevent the need to go back and conduct additional simulations following the TI team evaluations. The TI team will then select the subsets of input parameters that correspond to realistic combinations properly representing the correlation between the parameters (task D). Only the ground motions from simulations using these combinations of parameters will be used in the GMPE development (H).